Common name: American Microphoner Company R 331
Production Status: Discontinued / Vintage
The R 331 is a bidirectional ribbon microphone. The impedance can be quickly changed between high and low. The microphone has a built-in shock-proof mounting with lock-latch and swivel. Includes 12.5 ft. single-conductor shielded rubber covered cable, black leatherette-covered storage box, velvet covered rubber cushioned interior.